Global Patent Index - EP 2633129 A1

EP 2633129 A1 2013-09-04 - HYDRAULIC CIRCUIT

Title (en)

HYDRAULIC CIRCUIT

Title (de)

HYDRAULISCHE ANORDNUNG

Title (fr)

CIRCUIT HYDRAULIQUE

Publication

EP 2633129 A1 (DE)

Application

EP 11776751 A

Priority

  • DE 102010043135 A
  • EP 2011068765 W

Abstract (en)

[origin: WO2012055917A1] The invention relates to a hydraulic arrangement (10) for increasing an engine load. The hydraulic arrangement comprises a hydraulic load (28), a load pressure-controlled hydraulic pump (24), a hydraulic tank (26), and a hydraulic control circuit (30) which is connected to the hydraulic load (28) and with which a volume flow rate that is conducted from the hydraulic pump (24) can be changed. The hydraulic control circuit (30) comprises a pressure relief valve (42) and an electronically controllable control valve (36). The aim of the invention is to ensure a prioritization of the hydraulic load while simultaneously increasing the engine load. This is achieved in that the hydraulic control circuit (30) comprises a load pressure-controlled pressure balance (38) between the pressure relief valve (42) and the control valve (36).

IPC 8 full level (invention and additional information)

F02D 29/04 (2006.01); E02F 9/22 (2006.01); F15B 11/16 (2006.01); F15B 15/00 (2006.01); F15B 21/04 (2006.01)

CPC (invention and additional information)

F15B 11/161 (2013.01); E02F 9/2235 (2013.01); E02F 9/2296 (2013.01); F02D 29/04 (2013.01); F15B 11/165 (2013.01); F15B 15/00 (2013.01); F15B 21/042 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/40569 (2013.01); F15B 2211/426 (2013.01); F15B 2211/50518 (2013.01); F15B 2211/61 (2013.01); F15B 2211/633 (2013.01); F15B 2211/665 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

EPO simple patent family

DE 102010043135 A1 20120503; EP 2633129 A1 20130904; US 2013219874 A1 20130829; US 9284966 B2 20160315; WO 2012055917 A1 20120503

INPADOC legal status


2018-02-14 [INTG] ANNOUNCEMENT OF INTENTION TO GRANT

- Effective date: 20180118

2018-01-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F15B 15/00 20060101ALI20171220BHEP

2018-01-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F15B 11/16 20060101ALI20171220BHEP

2018-01-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F15B 21/04 20060101ALI20171220BHEP

2018-01-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: E02F 9/22 20060101ALI20171220BHEP

2018-01-24 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F02D 29/04 20060101AFI20171220BHEP

2014-02-05 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2013-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20130529

2013-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR